From 0ed2c0f8d24ee7ee5e595c3d39d8ade3c33e4eda Mon Sep 17 00:00:00 2001
From: alexgallotta <5581237+alexgallotta@users.noreply.github.com>
Date: Fri, 8 Sep 2023 14:21:43 -0400
Subject: [PATCH 1/2] add: script to quickly fetch and compare layers in
 diffrent regions

---
 existing_layers/.gitignore        |  1 +
 existing_layers/all_regions.txt   | 27 +++++++++++++++++++++++++++
 existing_layers/check_existing.sh | 17 +++++++++++++++++
 3 files changed, 45 insertions(+)
 create mode 100644 existing_layers/.gitignore
 create mode 100644 existing_layers/all_regions.txt
 create mode 100755 existing_layers/check_existing.sh

diff --git a/existing_layers/.gitignore b/existing_layers/.gitignore
new file mode 100644
index 000000000..397b4a762
--- /dev/null
+++ b/existing_layers/.gitignore
@@ -0,0 +1 @@
+*.log
diff --git a/existing_layers/all_regions.txt b/existing_layers/all_regions.txt
new file mode 100644
index 000000000..3b1ad98c0
--- /dev/null
+++ b/existing_layers/all_regions.txt
@@ -0,0 +1,27 @@
+ap-south-2
+ap-south-1
+eu-south-1
+eu-south-2
+me-central-1
+ca-central-1
+eu-central-1
+eu-central-2
+us-west-1
+us-west-2
+af-south-1
+eu-north-1
+eu-west-3
+eu-west-2
+eu-west-1
+ap-northeast-3
+ap-northeast-2
+me-south-1
+ap-northeast-1
+sa-east-1
+ap-east-1
+ap-southeast-1
+ap-southeast-2
+ap-southeast-3
+ap-southeast-4
+us-east-1
+us-east-2
diff --git a/existing_layers/check_existing.sh b/existing_layers/check_existing.sh
new file mode 100755
index 000000000..c81c3f5ad
--- /dev/null
+++ b/existing_layers/check_existing.sh
@@ -0,0 +1,17 @@
+find_all_regions() {
+  aws-vault exec sso-prod-engineering -- aws ec2 describe-regions | jq -r '.[] | .[] | .RegionName' >all_regions.txt
+}
+
+find_layers_from_all_regions() {
+  while IFS= read -r region; do
+    aws-vault exec sso-prod-engineering -- aws lambda list-layers --region "$region" | grep LayerVersionArn | cut -d':' -f6- >all_layers_"$region".log
+  done <all_regions.txt
+}
+
+diff_from_useast1() {
+  for f1 in all_layers_*.log; do
+    diff --unified=0 "$f1" all_layers_us-east-1.log
+  done | grep -vE "Datadog-Trace-Forwarder-Python|Node8|metric|Node10|Node12|Python27|Python36|Ruby2-5" >all_diff.log # ignore deprecated layers
+}
+
+"$@"

From 752f043fdb1f56ca30fd5b7a53bcbc49696eb296 Mon Sep 17 00:00:00 2001
From: alexgallotta <5581237+alexgallotta@users.noreply.github.com>
Date: Fri, 8 Sep 2023 14:24:49 -0400
Subject: [PATCH 2/2] remove verbose lines

---
 existing_layers/check_existing.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/existing_layers/check_existing.sh b/existing_layers/check_existing.sh
index c81c3f5ad..4a0ebf138 100755
--- a/existing_layers/check_existing.sh
+++ b/existing_layers/check_existing.sh
@@ -11,7 +11,7 @@ find_layers_from_all_regions() {
 diff_from_useast1() {
   for f1 in all_layers_*.log; do
     diff --unified=0 "$f1" all_layers_us-east-1.log
-  done | grep -vE "Datadog-Trace-Forwarder-Python|Node8|metric|Node10|Node12|Python27|Python36|Ruby2-5" >all_diff.log # ignore deprecated layers
+  done | grep -vE "@@|Datadog-Trace-Forwarder-Python|Node8|metric|Node10|Node12|Python27|Python36|Ruby2-5" >all_diff.log # ignore deprecated layers
 }
 
 "$@"